Multiply (2.3 × 10–5)(3.1 × 1012) a. 7.13 × 107 b. 7.13 × 10–60 c. 5.4 × 107 d. 5.4 × 108

7.13*10^7

Step-by-step explanation:

2.3 * 10^-5   * 3.1 * 10^12

We multiply the numbers out front and then add the powers of 10

2.3 * 3.1   * 10^(-5+12)

7.13 * 10^7

r(0,90)(x,y) . t(-5,0)

last option

step-by-step explanation:

∆def to ∆d"e"f"

- rotate 90 counterclockwise degrees

- then translated 5 to the left (x --> x - 5)

answer is the last option

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.